//	Ex630.cc

//	Sec. 6.3 of lecture
//	Pointers and arrays

#include <iostream.h>

main()
{
  const int N=10;
  double    x[N], *px, *pp, *pi;
  int       i;
  
  px = &x[0];
  pp = x;
  
  if ( px == pp)
  {
    cout << endl << " px and pp are identical" << endl;
  }
  
// 		initialize x
  for (i = 0; i < N; i++ )
   {
     *(px+i) = (i+1)*(i+1);		// x[i] = ...
   } 
   
//		check element 6
  i = 6;
  cout << endl;
  cout << x[i]    << endl; 
  cout << *(x+i)  << endl; 
  cout << px[i]   << endl; 
  cout << *(px+i) << endl << endl; 

//		output x;		// pointer pi as loop variable
  pp = x+N-1;				// pointer at last element of x			
  for ( pi =x; pi <= pp; pi++)
   {
     cout << "  " << *pi << endl;
   }
}